How is the default print queue identified?（）

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• public class Test {} What is the prototype of the default constructor？（）  

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• What is the default SPF throuttle timer in OSPF？（）

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• You are using Microsoft Windows Internet Explorer 7 on your computer. You need to print only the graphic on a Web page.  How should you print the graphic？（）

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• How many denominations are printed in the US money and what are they?

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  A.Login as the user and run ‘echo $ENV‘. B.Login as root and run the ‘env‘ command. C.Login as root and ‘cat /etc/environment‘. D.Login as the user and run the ‘env‘ command.

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• A router has two paths to reach another network in a different autonomous system. Neither route was generated by the local router and both routes have the same default weight an d local preference values.Which statement is true about how BGP would select the best path？（）

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• 下列程序段的输出结果为 ______。 int a=2； switch （a) case 2：System.out.print（"Value is 2.")；case 3：System.out.println（"Value is.")；break；default：System.out.println（"end")；break；

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